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      Blog Posts

      Irradiance and Red Light/Near Infrared Bulbs

      image showing how the irradiance of a heat lamp bulb decreases as the distance from the infrared light bulb increase
      Irradiance is the technical term for intensity of light. Irradiance can apply to both visible light, which can be seen with the naked eye, and infrared energy, which is not perceptible to the naked eye. Whether the light/energy is visible or not, its irradiance decreases as distance from the source increases. 

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      How to Choose a Near Infrared Bulb

      factors to consider when choosing an infrared light bulb, sauna bulb, or heat lamp bulb for use in infrared saunas and red light therapy
      The marketplace offers a wide range of red light and infrared products for home use by consumers. These include incandescent bulbs of varying sizes and wattages; walk in saunas; and LED bulbs, panels, face masks, and helmets. Prices range from less than $30 to more than $5000. While this variety presents the opportunity to find a product that is the perfect fit, the choices can be overwhelming without a means of comparing products in a meaningful way. Fortunately, there are some objective criteria that you can use to find the product that will be best for you.

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